HM Land Registry records the plot of land for 21, Haslingden Close, Harpenden as measuring 475 m².

That makes it the 11th largest plot in the postcode, where all 22 other houses have recorded plot data.

21, Haslingden Close, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 08 May 2012.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 21, Haslingden Close, Harpenden completed on 5th September 1996 at £195,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

• Sold Sep 1996£195,000

Since 2011 190 properties similar to 21, Haslingden Close, Harpenden have sold within a radius of 1.1 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 17th December 2025, was 3, How Field, Harpenden, AL5 3AU, a freehold house which sold for £1,150,000.

Read more about house prices in AL5.

• Sold Dec 2025£1,150,000 | 4 Bed House3, How Field, Harpenden, AL5 3AU3, How Field, Harpenden, AL5 3AU
• Sold Oct 2025£1,200,000 | 5 Bed House7, Carpenders Close, Harpenden, AL5 3HN7, Carpenders Close, Harpenden, AL5 3HN
• Sold Aug 2025£950,000 | 4 Bed House13, Haslingden Close, Harpenden, AL5 3EW13, Haslingden Close, Harpenden, AL5 3EW
• Sold Jan 2025£1,170,000 | 5 Bed House23, Wood End Hill, Harpenden, AL5 3EZ23, Wood End Hill, Harpenden, AL5 3EZ
• Sold Jul 2024£1,200,000 | 4 Bed House49, Tuffnells Way, Harpenden, AL5 3HA49, Tuffnells Way, Harpenden, AL5 3HA
• Sold Jun 2024£920,000 | 4 Bed House26, Carpenders Close, Harpenden, AL5 3HN26, Carpenders Close, Harpenden, AL5 3HN
• Sold May 2024£950,000 | 4 Bed House3, Carpenders Close, Harpenden, AL5 3HN3, Carpenders Close, Harpenden, AL5 3HN
• Sold Mar 2024£970,000 | 4 Bed House11, Haslingden Close, Harpenden, AL5 3EW11, Haslingden Close, Harpenden, AL5 3EW
• Sold May 2023£1,010,000 | 4 Bed House37, Ridgewood Drive, Harpenden, AL5 3LJ37, Ridgewood Drive, Harpenden, AL5 3LJ
• Sold Apr 2023£1,125,000 | 4 Bed House32, Carpenders Close, Harpenden, AL5 3HN32, Carpenders Close, Harpenden, AL5 3HN
• Sold Mar 2022£1,325,000 | 4 Bed House58, Roundwood Lane, Harpenden, AL5 3EP58, Roundwood Lane, Harpenden, AL5 3EP
• Sold May 2020£940,000 | 5 Bed House28, Brackendale Grove, Harpenden, AL5 3EJ28, Brackendale Grove, Harpenden, AL5 3EJ
• Sold Feb 2020£875,000 | 5 Bed House40, Ashley Gardens, Harpenden, AL5 3EY40, Ashley Gardens, Harpenden, AL5 3EY
• Sold Nov 2019£850,000 | 4 Bed House10, Ashley Gardens, Harpenden, AL5 3EY10, Ashley Gardens, Harpenden, AL5 3EY
• Sold May 2019£955,000 | 4 Bed House32, Brackendale Grove, Harpenden, AL5 3EJ32, Brackendale Grove, Harpenden, AL5 3EJ
• Sold Jan 2018£768,000 | 4 Bed House14, Ashley Gardens, Harpenden, AL5 3EY14, Ashley Gardens, Harpenden, AL5 3EY
• Sold May 2017£900,000 | 4 Bed House34, Brackendale Grove, Harpenden, AL5 3EJ34, Brackendale Grove, Harpenden, AL5 3EJ
• Sold Jan 2015£810,000 | 4 Bed House17, Haslingden Close, Harpenden, AL5 3EW17, Haslingden Close, Harpenden, AL5 3EW
• Sold Aug 2013£585,000 | 4 Bed House25, Brackendale Grove, Harpenden, AL5 3EL25, Brackendale Grove, Harpenden, AL5 3EL
• Sold Aug 2011£717,000 | 4 Bed House30, Ashley Gardens, Harpenden, AL5 3EY30, Ashley Gardens, Harpenden, AL5 3EY

Of the 22 addresses on Haslingden Close, Harpenden, AL5, 21, Haslingden Close, Harpenden comes out as the 2nd largest and the most expensive in our analysis of the public data.

It is also £111k more expensive than the average property across the AL5 district.

• Wood End School

  300 m away
• Roundwood Primary School

  700 m away
• St Nicholas CofE VA Primary School

  1.7 km away

• Roundwood Park School

  700 m away
• St George's School

  1.8 km away
• Sir John Lawes School

  2.3 km away

• Harpenden

  |

  2.2 km away
• Luton Airport Parkway

  |

  5.5 km away
• Luton

  |

  6.9 km away

The flood risk here is rated Very Low, based on Environment Agency data.